Process of recovering waste products.



UNITED STATES PATENT OFFICE- JACOB M. MONESS, 0]! LONG ISLAND CITY, NEW YORK.

PROCESS OF RECOVERING WASTE PRODUCTS.

No Drawing.

To all whom it may concern:

Be it known that I, JAcoB M. MoNnss, a subject of the Czar of Russia, resident of L. I. City, in the county of Queens and State of New York, have invented certain new and useful Processes of Recovering Waste Products, of which the following is a specification.

This invention relates to the recovery of certain waste products so that the same are rendered useful and are obtained in commercially salable form. Particularly my process relates to the recovery of the textile 01 cotton base of such materials as oil cloth, linoleum and similar articles which are coated with a waterproofing composition in the nature of a waterproof pigment.

When material as oil cloth, for exam le, has had the surface coating of waterproofing material damaged, as after use or due to defects in the manufacture thereof, it is generally considered useless since no process has heretofore, to my knowledge, been discovered which will permit the textile base of such material to be removed without destroying or weakening the fibers of the fibrous base. I have discovered a process whereby such fabric or textile base may be recovered in an unaltered condition, without, in the slightest degree, weakening the fibers of the textile material. I shall describe my process as applied to the class of materials known as oil cloth, although, as already stated, the process may be applied with equal success to analogous materials. In my process the oil cloth, or equivalent material, is treated with a solution of alkali, such as caustic soda. While a solution of any strength may be employed, I prefer to use a solution containing from 1 to 5% of caustic soda. If the solution is weaker, the action will not proceed rapidly enough; if it is much stronger, there is danger of weakening the fibers of the textile base of the oil or similar cloth. The process is worked at normal temperatures, 71. 6., the solution is what might be termed cold. The oil, or similar cloth, is placed in the alkali solution and is permitted to remain there until it is noticed that the coating of waterproof material falls away from the textile base. This action is carried out in Specification of Letters Patent.

Patented July 30, 1918.

Application filed March 31, 1917. Serial No. 158,943.

any suitable receptacle or tank and generally takes from 12 to 24 hours.

Under the action of the alkali the coating of oxidized oil, or other waterproofing material, separates from the textile base. After the coating of waterproofing material has been separated from the textile base by the action of the alkali, the textile base i washed, after which it is bleached. After bleaching, the material is washed, centrifuged and subsequently dried. i V

The coating material is collected and may be pressed into the form of cakes and used for any desired purpose. It makes an excellent fuel. The recovered textile base, generally cotton, is obtained with its fiber in an unaltered condition due to the treatment with alkali in a cold solution.

What I claim is:

1. The process of recovering in a substantially unaltered condition the textile base of the class of materials called oil cloth which comprises the step of treating such cloth with a cold dilute solution of a caustic alkali.

2. The process of recovering in a substantially unaltered condition the textile base of the class of materials called oil cloth which comprises the step of treating such cloth with a cold solution of from 1 to 5% of caustic soda.

3. The process of recovering in a substantially unaltered condition the textile base of the class of materials called oil cloth which comprises the steps of treating such cloth' with a cold dilute solution of caustic alkali, washing the textile material recovered in an uncoated condition, bleaching the same, and finally drying the same.

4. The process of recovering in a substantially unaltered condition the textile base of the class of materials called oil cloth which comprises the steps of treating the cloth with a cold solution containing from 1 to 5% of caustic soda, washing the textile material recovered in an uncoated condition, bleaching the same, and finally drying the same.

Signed at Long Island City, in the county of Queens and State of New York this-29th day of March A. D. 1917.

J. M. MONESS.

Copies of thll potent may be obtained for live cent: each, by addressing the Oommlnionet of Paton",

Wellington, D. 0. 

